# Security bag

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Security_bag
> Markdown URL: https://mediated.wiki/source/Security_bag.md
> Source: https://en.wikipedia.org/wiki/Security_bag
> Source revision: 1356231825
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Short description|Bag for valuable or legally sensitive items}}
thumb|Tamper evident bag tape providing additional layer of security
thumb|Evidence bag
thumb|upright|Currency bag
A '''security bag''' is a heavy duty bag used to contain high-value products, documents or legally sensitive items. Envelopes with security features are called '''security envelopes''' as well as security bags. Cash for deposit in a bank is often placed in a special '''deposit bag''' with security features.<ref>{{cite web
|title=Sealed Bag deposit Process
|publisher=Northwestern University
|date=2016
|url=http://ffra.northwestern.edu/documents/training/gl/740/course/SealedBagDepositProcess.pdf
|access-date=2019-04-07
|archive-date=2019-04-07
|archive-url=https://web.archive.org/web/20190407200413/http://ffra.northwestern.edu/documents/training/gl/740/course/SealedBagDepositProcess.pdf
|url-status=dead
}}</ref><ref>{{cite web
 |title=Preparing and Packaging Cash Vault Deposits
 | last =Bank of America
|publisher=Harvard University
| date =2015
|url=http://otm.finance.harvard.edu/files/otm/files/deposit_preparation_guide.pdf
 }}
</ref> When they are used to contain items related to a crime, special '''evidence bags''' are used.<ref>{{cite journal
| last       = Warrington
| first       = D
| date       = April 1, 2008
| title       = Evidence Packaging
| url       = https://www.forensicmag.com/article/2008/04/evidence-packaging
| journal       = Forensics
| archive-date       = December 31, 2016
| access-date       = April 7, 2019
| archive-url       = https://web.archive.org/web/20161231015949/http://www.forensicmag.com/article/2008/04/evidence-packaging
| url-status       = dead
}}</ref> [Authentication](/source/Authentication) of signatures and [chain of custody](/source/chain_of_custody) are often required.

==Construction==
Security bags or [envelope](/source/envelope)s may be specially designed [plastic bag](/source/plastic_bag)s, [paper bag](/source/paper_bag)s, or fabric bags. Bags or envelopes can be made to be [tamper resistant](/source/tamper_resistant) to make it difficult for unauthorized entry. It is often more important for these to be [tamper evident](/source/tamper_evident) so that an unauthorized entry is easily detected to have occurred.

Bags and envelopes are often closed by an integral [pressure sensitive adhesive](/source/pressure_sensitive_adhesive) on the closing flap. The removal of a [release liner](/source/release_liner) allows convenient closing of the bag. Several types of security features can be included in the flap structure and are designed to indicate its opening irreversibly.<ref>{{cite patent|country=US|number=2006066096|title=Adhesive tape structure for sealing and keeping secrecy|pubdate=2006-03-30|status=application|inventor1-last=Kan|inventor1-first=Shen-Nan}}, now abandoned.</ref><ref>{{cite patent|country=US|number=5918983|title=Security envelope|pubdate=1999-07-06|assign=Control Paper Co. Inc.|inventor1-last=Palazzolo|inventor1-first=John}}, now expired.</ref><ref>{{cite patent|country=US|number=5788377|title=Tamper-resistant envelope|pubdate=1998-08-04|assign=Uniflex Inc.|inventor1-last=Vetter|inventor1-first=Kurt W.}}</ref><ref>{{cite patent|country=US|number=5108194|title=Security bag|pubdate=1992-04-28|inventor1-last=Raden|inventor1-first=David T.}}, now expired.</ref><ref>{{cite patent| country=US|number=2005036716|status=application|title=Tamper indicating security bag|pubdate=2005-02-17|assign=Ampac Plastics LLC|inventor1-last=Geyer|inventor1-first=Thomas}}, now abandoned.</ref><ref>{{cite patent|country=US|number=5631068|title=Self-containing tamper evident tape and label|pubdate=1997-05-20|assign=Trigon Packaging Corp.|inventor1-last=Smith|inventor1-first=Christopher A.}}</ref><ref>{{cite patent|country=US|number=4449631|title=Tamper proof packaging|pubdate=1984-05-22|inventor1-last=Levenberg|inventor1-first=Nat|inventor2-last=Levenberg|inventor2-first=Alvin}}</ref>

Separate [security tape](/source/security_tape)s are also used. Tamper-indicating security seals employ a variety of mechanisms for operation, each with its own advantages and disadvantages.

Documentation such as labels for certified signatures for custody and chain-of-custody labels are frequently included.

==Use==
No one security feature can be considered as "tamper proof".<ref>{{Citation
| last = Rosette
| first = J L
| chapter = Tamper-Evident Packaging
| year =2009 
| editor-last = Yam
| editor-first = K L
| title = Encyclopedia of Packaging Technology
| publisher = Wiley
| publication-date = 2010
| isbn = 978-0-470-08704-6
}}</ref> Layers of tamper-resistant and tamper-evident features, as well as the broader security systems are needed to provide better assurance of security. All security products can be foiled by a knowledgeable person with sufficient time and with access to specialized tools, solvents, extreme temperatures,<ref>{{cite patent|country=US|number=5798169|title=Self-containing tamper evident seal|pubdate=1998-08-25|assign=[Sealed Air Corp.](/source/Sealed_Air_Corp.)|inventor1-last=Smith|inventor1-first=Christopher A.}}</ref> other security bags, [security tape](/source/security_tape)s, etc.

==Faraday Bag==

When electronic devices, cell phones, media storage, etc. are collected as evidence in a criminal investigation, faraday bags can be used to prevent damage or adulteration.   As a [Faraday cage](/source/Faraday_cage), these have [electromagnetic shielding](/source/electromagnetic_shielding) to prevent electronic access to contents.<ref>{{Citation
| last = Lennox-Steele 
| first = A
| title = A forensic examination of several mobile device Faraday bags & materials to test their effectiveness
| publisher = Proceedings of 14th Australian Digital Forensics Conference, 5-6 December 2016, Edith Cowan University, Perth, Australia
| publication-date = 2016
| url = https://ro.ecu.edu.au/adf/165/
}}</ref><ref>{{Citation
| last = Senol
| first = Nurettin Selcuk
| title = Mobile Forensic Investigation: Extractions and Connectivity Isolation in Phones Utilizing eSIM, iSIM Technology
| publisher = IEEE 12th International Symposium on Digital Forensics and Security (ISDFS)
| publication-date = 2024
| url = https://www.researchgate.net/profile/Nurettin-Senol-2/publication/380612729_Mobile_Forensic_Investigation_Extractions_and_Connectivity_Isolation_in_Phones_Utilizing_eSIM_iSIM_Technology/links/66467dff479366623af36eda/Mobile-Forensic-Investigation-Extractions-and-Connectivity-Isolation-in-Phones-Utilizing-eSIM-iSIM-Technology.pdf
}}</ref>

Smaller personal faraday bags are used to prevent unwanted access to credit cards, keyfobs, cell phones, etc.<ref>{{cite patent
| country       =US
| number        =US8479922B2
| title         =Shieldable bag system and devices
| pubdate       =2012
|inventor1-last=	Kennedy
|inventor1-first=L
| url = https://patents.google.com/patent/US8479922B2/en
}} </ref><ref> {{cite patent
| country       =US
| number        =11,284,546 B2
| title         =FARADAY BAG WITH MAGNETIC CLOSURE SYSTEM
| pubdate       =2022
|inventor1-last=	Merakai 
|inventor1-first=
| url = https://patentimages.storage.googleapis.com/b6/ef/4f/ed4e83a4c0cf15/US11284546.pdf
}} </ref>

==See also==
*[Currency packaging](/source/Currency_packaging)
*[Dye pack](/source/Dye_pack)
*[Evidence management](/source/Evidence_management)
*[Provenance](/source/Provenance)
*[Package pilferage](/source/Package_pilferage)
*[Security seal](/source/Security_seal)
*[Traceability](/source/Traceability)

== Notes ==
{{reflist}}

==References==
{{refbegin}}
* Rosette, J L, ”Improving Tamper-Evident Packaging: Problems, Tests and Solutions", 1992
* Yam, K.L., "Encyclopedia of Packaging Technology", John Wiley & Sons, 2009, {{ISBN|978-0-470-08704-6}}
{{refend}}
{{packaging}}
{{bags}}

Category:Bags
Category:Evidence
Category:Theft
Category:Security
Category:Security technology
Category:Envelopes
Category:Money containers

---
Adapted from the Wikipedia article [Security bag](https://en.wikipedia.org/wiki/Security_bag) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Security_bag?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.